http://www.nichd.nih.gov/health/topics/klinefelter_syndrome.cfm
http://www.nichd.nih.gov/publications/pubs/klinefelter.cfm
http://www.encolombia.com/medicina/materialdeconsulta/Suplemento34/Fenotipo.jpg
http://ghr.nlm.nih.gov/condition%3Dklinefeltersyndrome
http://www.klinefeltersyndrome.us/
http://www.nichd.nih.gov/publications/pubs/images/klinefelterfigure.gif
By Steven Baccam